广西水利水电Issue(4)：8-14,7.
钦灵灌区主要作物生育期灌溉需水量特征分析
Analysis of irrigation water demand characteristics during the growth periods of major crops in the Qinling Irrigation Zone
摘要
Abstract
Based on the daily meteorological data from 1957 to 2022 collected by the Lingshan County Meteorologi-cal Station,the Penman-Monteith formula and the segmented crop coefficient method recommended by the Food and Agriculture Organization of the United Nations(FAO)were used to calculate the water demands during the growth periods of major crops in the Qinling Irrigation Zone.Combined with effective precipitation,the irrigation wa-ter demand was calculated.The results showed that:① The annual evapotranspiration of reference crops in the Qin-ling Irrigation Zone ranged from 1088.2 to 1374.2 mm,with a multi-year average of 1190.78 mm.The evapotranspi-ration of reference crops showed a slow increasing trend,with a growth rate of 2.77 mm/10a.② There were signifi-cant differences in the water demands during the growth periods of early rice,late rice,sugarcane,and curcuma ze-doary,all of which showed a slow increasing trend.The multi-year average water demands were 436.0～999.64 mm.③The multi-year average irrigation water demands for early rice,late rice,sugarcane,and curcuma zedoary were 234.80～520.54 mm.The irrigation water demands showed a slow increasing trend,with an increase rate of 2.45～4.16 mm/10a.关键词
钦灵灌区/参考作物蒸散发量/作物需水量/灌溉需水量Key words
Qinling Irrigation Zone/reference crop evapotranspiration/crop water demand/irrigation water demand分类
农业科技引用本文复制引用
李荣朋,邵金华,黄文贰..钦灵灌区主要作物生育期灌溉需水量特征分析[J].广西水利水电,2026,(4):8-14,7.基金项目
广西重点研发计划项目(桂科AB23026021) （桂科AB23026021）
广西水利科技推广项目《基于高分辨率卫星遥感的作物种植信息和灌区用水信息快速感知技术应用与推广》(SK-2022-008) （SK-2022-008）
